三峡库区移民迁建工程地质问题与对策

三峡工程库区地处渝东、鄂西山区地带，丘陵占２１．７％，山地占７４％，平坝仅占４．３％，而这些平坝中最低的一部分又将被水库淹没。库区人口多，长期过度开垦，水土流失严重，后备土地资源缺少，地质环境容量极为有限，人地关系紧张，移民安置难度大，移民总人口达１２０万人。在１９９３年至１９９７年一期移民中，共安置了８．２万移民，在２００３年将需搬迁安置约５０万人，三期移民在２００９年前必须完成。因此，二期、三期移民工作比一期任务更为艰巨、时间更为紧迫。如果说，三峡工程成败在移民的话，那么移民的成败在某种程度上取决于地质。本文对库区移民工程建设中的工程地质，特别是地质灾害及其防治问题进行了研究。

Engineering geological problems and suggestions on immigrant construction in Three Gorges Reservoir region

The migrating population of the Three Gorges Reservoir is about 1 2 million. During the first stage project on migration from 1993 to 1997, 82 thousands of population were settled, and 500 thousands of population will be settled during the second stage project from 1997 to 2003, and over 650 thousands of population, during the third stage project by 2009. But, where will so great population inhabit, since in the area of reservoir the plain is rather rare and geologic hazards are quite frequent? The paper discusses the engineering geology, especially geologic hazards and their control during the migratio settlement.